Operating Manual Maintenance
4/1/99
41
THERMOCOUPLE- The thermocouple includes the compression nut and ferrule, and
once locked in place the ferrule becomes a permanent part of the thermocouple and
cannot be relocated or removed. The location of the thermocouple is critical to the
operation of the heater and requires proper positioning before tightening the compression
nut.
Proper installation procedures are as follows:
1.
Determine that the body of the compression fitting is securely tightened into the heat
exchanger tube to prevent any leakage. Remember, once the ferrule has been set, the
position of the body cannot be changed.
2.
Determine that the heat exchanger spring is not obstructing placement of the
thermocouple. Place the thermocouple into the body and continue to insert until it
makes positive contact with the heating element.
3.
Firmly hold the thermocouple in place against the element while tightening the
locknut. Note the correct ferrule positioning.
Figure 31. Thermocouple
To Next Page
Loading...
